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Thread: 450 ackley

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    Default 450 ackley

    i have a 450 ackley and tried a load that was on here. it was 85gr or h4895 and i am getting 2170 with hornady 500, i would like to get over 2300fps. anyone got any loads

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    Quote Originally Posted by grizzinater View Post
    i have a 450 ackley and tried a load that was on here. it was 85gr or h4895 and i am getting 2170 with hornady 500, i would like to get over 2300fps. anyone got any loads


    Grizz,

    Yes, I have lots of data for that one. I haven't loaded for it for a while and don't remember the load off hand. That H4895 loads seems as if it should produce more velocity than the 2170 fps, what barrel length do you have. I've owned two of them both were A Square Hannibal rifles, one, a nice chunk of walnut, the other an MPI stock of the same style. Both were made on the indestructable P-17 action and very good rifles. I just thought they were too heavy and thick and off loaded them. Both had 23" barrels and as I recall would send the 500 grainer to 2400 fps. I'll have to check my loading notes tonite.
    Is there nothing so sacred on this earth that you aren't willing to kill or die for?



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    hey murph its a stainless montana rifleman with a 23in barrel. the powder i used was a little old but i would like to get over 2300fps what do you think i should try

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    I'd say look at 458 Lott data and work up from there. I liked Varget and RL 15 in my 458 Lotts.

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    Grizz,

    The 450 Ackley loads that performed best were as follows.

    Brass: R-P 416 Remington brass necked up to 458.

    Primers: CCI-250 Magnum Large Rifle

    Bullet: Hornady 500 grain Soft Point.

    Powder:
    H4895-- 82.0 grains, 2246 fps.
    -------- 84.0 grains, 2306 fps.
    -------- 85.0 grains, 2333 fps.
    H4895-- 86.0 grains, 2359 fps. A maximum load in my rifle.

    I settled on 84.0 grains with the 500 grain Hornady softpoint bullet.

    Powder:
    RL-12--- 82.0 grains, 2156 fps.
    ---------84.0 grains, 2244 fps.
    ---------86.0 grains, 2316 fps.
    RL-12--- 88.0 grains, 2346 fps. Maximum load.

    I settled for the 86.0 grains of RL-12 as the best load for the 500 grain SP Hornady. This same load in the A-Square brass was same velocity.

    The A Square Dead Tough Bullet at 465 grains with 86.0 grains of RL-12 gave 2350 fps and and was a very good load for the Ackley. This load was used on a couple of buffalo in Zimbabwe. One shot each and a very short wait before pictures.


    Your barrel and chamber dimensions may vary and velocities could vary as well. Less velocity doesn't always mean less pressure. Check pressure signs carefully. This one can be down loaded to equal the 458 Winchester with about 80.0 grains of these powders.
    Is there nothing so sacred on this earth that you aren't willing to kill or die for?



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